CN110190558A - A kind of operational method for charged for replacement 550kN large-tonnage strain insulator side of wire monolithic insulator - Google Patents
A kind of operational method for charged for replacement 550kN large-tonnage strain insulator side of wire monolithic insulator Download PDFInfo
- Publication number
- CN110190558A CN110190558A CN201910612947.0A CN201910612947A CN110190558A CN 110190558 A CN110190558 A CN 110190558A CN 201910612947 A CN201910612947 A CN 201910612947A CN 110190558 A CN110190558 A CN 110190558A
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- Prior art keywords
- insulator
- screw rod
- wire
- monolithic
- hydraulic screw
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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Abstract
The present invention relates to power transmission network service technique field, specially a kind of operational method for charged for replacement 550kN large-tonnage strain insulator side of wire monolithic insulator, including card and digital display hydraulic screw rod after overturning plate clamp, monolithic insulator card.This is in the method for charged for replacement 550kN large-tonnage strain insulator side of wire overhang insulation, when tightening digital display hydraulic screw rod, by the numerical value for observing digital display hydraulic screw rod, the tension that adjustment two sides screw rod is born in time, make two sides screw rod stress equalization, the contact surface stress equalization for making insulator Yu monolithic insulator card guarantees that operating personnel takes the connection of de- insulator Yu socket-clevis eye and other insulators, completes more changing jobs for insulator.In entire replacement process, make the contact surface stress equalization of insulator Yu monolithic insulator card, solves insulator and monolithic insulator clamping contacting surface unilateral side stress is excessive, insulator steel cap is caused to burst, the problem for leading to replacing insulator method complexity, improves power supply reliability.
Description
Technical field
The present invention relates to power transmission network service technique fields, specially a kind of to lead for charged for replacement 550kN large-tonnage strain insulator
The operational method of line side monolithic insulator.
Background technique
The glass insulator that super-pressure, UHV transmission line generally use large-tonnage at present is held as strain insulator
By the tension of large-section lead.The insulator receiving wire tension of 550kN large-tonnage is larger, utilizes traditional mechanical lead screw or liquid
Silk pressing bar cooperation fixture is replaced, and two sides screw rod stress can be unbalanced, contacts so as to cause insulator with monolithic insulator card
Face unilateral side stress is excessive, and insulator steel cap is caused to burst.In consideration of it, it is proposed that a kind of be used for charged for replacement 550kN large-tonnage
The operational method of strain insulator side of wire monolithic insulator.
Summary of the invention
The purpose of the present invention is to provide a kind of for charged for replacement 550kN large-tonnage strain insulator side of wire monolithic insulator
Operational method, it is larger with the insulator receiving wire tension for solving 550kN large-tonnage mentioned above in the background art, utilize biography
Mechanical lead screw or hydraulic screw rod the cooperation fixture of system are replaced, and two sides screw rod stress can unbalanced, so as to cause insulator and
Monolithic insulator card one-side contact face stress is excessive, and insulator steel cap is caused to burst, and causes replacing insulator method is complicated to ask
Topic.
To achieve the above object, the present invention provides a kind of exhausted for charged for replacement 550kN large-tonnage strain insulator side of wire monolithic
The operational method of edge, includes the following steps:
S1, equipotential live line work personnel enter equipotential；
S2, installation overturning plate clamp: overturning plate clamp is mounted on strain insulator string side of wire socket-clevis eye by equipotential electrician
On bolt；
Block after S3, installation monolithic insulator card: equipotential electrician will fix after monolithic insulator card due to side of wire third
On the steel cap of piece suspension insulator；
S4, installation digital display hydraulic screw rod: one end that a radical shows hydraulic screw rod is passed through bolt and turnover panel by equipotential electrician
Card is connected, then the other end of digital display hydraulic screw rod is connected by blocking after bolt and ipsilateral monolithic insulator card, finally
The installation that another radical shows hydraulic screw rod is completed according to same sequence；
S5, transfer part tension: tightening digital display hydraulic screw rod makes tension part suffered by suspension insulator be transferred to digital display
On hydraulic screw rod；
S6, restringing side end suspension insulator: the bolt of the needed to change suspension insulator both ends connection of extraction, one
The numerical value of digital display hydraulic screw rod is observed on side, on one side tightening digital display hydraulic screw rod, in digital display hydraulic screw rod tightening process, makes two radicals
Aobvious hydraulic screw rod numerical value is consistent, and until taking de- needed to change suspension insulator, takes de- needed to change suspension insulator
New suspension insulator is installed, the bolt that new suspension insulator both ends connect is installed in place；
S7, digital display hydraulic screw rod and removal tool are loosened, equipotential electrician exits electric field.
Preferably, the both ends of the overturning plate clamp are connected separately with digital display hydraulic screw rod, the other end of digital display hydraulic screw rod
Block after connection monolithic insulator card.
Preferably, being connected respectively by steel cap between multiple suspension insulators.
Preferably, being provided with connected unit at the top of the steel cap, sliding slot, the inside of sliding slot are offered at the top of connected unit
Offer card slot, the inside of card slot is additionally provided with briquetting, and the bottom of suspension insulator is equipped with bolt, the bottom one of bolt at
Type has chuck.
Preferably, the chuck and card slot are engaged by clamping.
Preferably, the bolt and sliding slot are slidably connected.
Preferably, one end of suspension insulator described in conducting wire side end is provided with side of wire yoke plate, suspension insulator is logical
It crosses socket-clevis eye and is connected to side of wire yoke plate one end.
Preferably, the socket-clevis eye includes connecting bowl head, the bottom of connecting bowl head offers socket-clevis eye sliding slot, bowl
The inside of head hanging plate sliding slot offers socket-clevis eye card slot, and the inside of socket-clevis eye card slot is additionally provided with socket-clevis eye briquetting, bowl
Head hanging plate bottom is equipped with card slot hanging plate, has screw hole on card slot hanging plate.
Preferably, the socket-clevis eye bolt and screw hole are threadedly coupled.
Compared with prior art, beneficial effects of the present invention: this is used for charged for replacement 550kN large-tonnage strain insulator conducting wire side
In the method for portion's insulator, when tightening digital display hydraulic screw rod, by observing the numerical value of digital display hydraulic screw rod, two sides are adjusted in time
The tension that screw rod is born makes two sides screw rod stress equalization, makes the contact surface stress equalization of insulator Yu monolithic insulator card, protects
Card operating personnel takes the connection of de- needed to change suspension insulator and socket-clevis eye and other insulators, completes insulator more
It changes jobs.In entire replacement process, make the contact surface stress equalization of insulator Yu monolithic insulator card, solves insulator and monolithic
Insulator clamping contacting surface unilateral side stress is excessive, causes insulator steel cap to burst, leads to the problem of replacing insulator method complexity, mention
High power supply reliability.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is suspension insulator structural schematic diagram of the invention；
Fig. 3 is steel cap structure schematic diagram of the invention；
Fig. 4 is socket-clevis eye structural schematic diagram of the invention；
Fig. 5 is 550kN large-tonnage strain insulator string structure chart of the invention.
In figure: 1, overturning plate clamp；2, block after monolithic insulator card；3, digital display hydraulic screw rod；4, side of wire yoke plate；5, bowl head is hung
Plate；51, connecting bowl head；52, socket-clevis eye briquetting；53, socket-clevis eye screw hole；54 card slot hanging plates；55, socket-clevis eye sliding slot；56,
Socket-clevis eye card slot；6, socket-clevis eye bolt；7, suspension insulator；71, bolt；72, chuck；8, steel cap；81, connected unit；82,
Sliding slot；83, card slot；84, briquetting；9, cross-arm side connection gold utensil.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
Embodiment 1
The present invention provides a kind of operational method for charged for replacement 550kN large-tonnage strain insulator side of wire monolithic insulator,
As shown in Figure 1, including the following steps:
S1, equipotential live line work personnel enter equipotential；
S2, installation overturning plate clamp 1: overturning plate clamp 1 is mounted on strain insulator string side of wire bowl head and hung by equipotential electrician
On crab bolt 6；
Block 2 after S3, installation monolithic insulator card: equipotential electrician will be fixed on side of wire the by card 2 after monolithic insulator card
On the steel cap 8 of three pieces suspension insulator 7；
S4, installation digital display hydraulic screw rod 3: one end that a radical shows hydraulic screw rod 3 is passed through bolt and turned over by equipotential electrician
Board 1 is connected, then the other end of digital display hydraulic screw rod 3 is connected by bolt with card 2 after ipsilateral monolithic insulator card,
Finally the installation that another radical shows hydraulic screw rod 3 is completed according to same sequence；
S5, transfer part tension: tightening digital display hydraulic screw rod 3 makes tension part suffered by suspension insulator 7 be transferred to number
On aobvious hydraulic screw rod 3；
S6, restringing side end suspension insulator: extracting the bolt 71 of needed to change suspension insulator both ends connection,
The numerical value of digital display hydraulic screw rod 3 is observed on one side, on one side tightening digital display hydraulic screw rod 3, in 3 tightening process of digital display hydraulic screw rod, make
Two radicals show 3 numerical value of hydraulic screw rod and are consistent, and until taking de- needed to change suspension insulator, take de- needed to change suspension type
Insulator installs new suspension insulator, and the bolt 71 that new suspension insulator both ends connect is installed in place；
S7, digital display hydraulic screw rod 3 and removal tool are loosened, equipotential electrician exits electric field.
The both ends of overturning plate clamp 1 are connected separately with digital display hydraulic screw rod 3, and the other end connection monolithic of digital display hydraulic screw rod 3 is exhausted
Block 2 after edge subcard.
In the present embodiment, overturning plate clamp 1 is mounted on strain insulator string side of wire socket-clevis eye bolt 6, and overturning plate clamp 1 will
Side of wire yoke plate 4 is stuck in 1 center of overturning plate clamp, and in distraction procedure, the power of overturning plate clamp 1 is transferred to strain insulator string side of wire bowl
On head hanging plate bolt 6.
Further, card 2 is mounted on suspension insulator 7 after monolithic insulator card, convenient in distraction procedure, suspension type is exhausted
The power born on edge 7 is blocked on 2 after being transferred to monolithic insulator card.
Specifically, the suspension insulator 7 close to 1 one end of overturning plate clamp is connected on side of wire yoke plate 4 by socket-clevis eye 5,
Convenient for suspension insulator 7 is connected on side of wire yoke plate 4 by socket-clevis eye 5, suspension insulator 7 is driven by overturning plate clamp 1
Movement.
It is worth noting that digital display hydraulic screw rod 3 involved in the present embodiment is the prior art, it is not related to digital display liquid
The improvement of 3 internal structure module of silk pressing bar, in use, it is aobvious that operator only needs to observe both ends digital display hydraulic screw rod 3
It is equal to ensure that number both ends show the stress value that hydraulic screw rod 3 is shown for the stress numerical value shown.
Operational method in the present embodiment for charged for replacement 550kN large-tonnage strain insulator side of wire monolithic insulator is using
When, overturning plate clamp 1 is fixed on strain insulator string side of wire socket-clevis eye bolt 6, card 2 is fixed on conducting wire after monolithic insulator card
On the third piece insulator steel cap of side, the both ends of digital display hydraulic screw rod 3 are by bolt respectively and after overturning plate clamp 1, monolithic insulator card
Card 2 is connected, and when tightening digital display hydraulic screw rod 3, by observing the numerical value of digital display hydraulic screw rod 3, adjusts two sides in time and shows hydraulic
The tension that screw rod 3 is born makes two sides show 3 stress equalization of hydraulic screw rod, blocks 2 after making suspension insulator 7 and monolithic insulator card
Contact surface stress equalization, guarantee that operating personnel takes de- needed to change suspension insulator and socket-clevis eye 5 and other insulators
Connection, complete more changing jobs for insulator.
Embodiment 2
As second of embodiment of the invention, it is attached for the ease of multiple suspension insulators 7, the present invention is also set up
There is steel cap 8, as a kind of preferred embodiment, as shown in Figures 2 and 3, is connected respectively by steel cap 8 between multiple suspension insulators 7
It connects, the top of steel cap 8 is provided with connected unit 81, and the top of connected unit 81 offers sliding slot 82, and the inside of sliding slot 82 offers card
Slot 83, the inside of card slot 83 are additionally provided with briquetting 84, and the bottom of suspension insulator 7 is equipped with bolt 71, the bottom one of bolt 71
It is body formed to have chuck 72.
In the present embodiment, chuck 72 and card slot 83 are engaged by clamping, convenient for chuck 72 to be caught in card slot 83, realize bolt
71 and connected unit 81 installation.
Specifically, bolt 71 and sliding slot 82 are slidably connected, convenient for sliding into bolt 71 inside sliding slot 82.
Further, briquetting 84 is made of aluminum alloy material, and it is in " M " shape that briquetting 84 is whole, so that briquetting 84 is whole
Chuck 72 can be withstood when briquetting 84 fills in 83 inside of card slot with good metal toughness, convenient for chuck 72 to be fixed on
In card slot 83.
It is worth noting that sliding slot 82 and card slot 83 are communicating state, convenient for bolt 71 is slid into sliding slot 82, so that chuck
72 are caught in card slot 83.
The connected unit 81 of one of suspension insulator 7 is aligned another by the suspension insulator 7 of the present embodiment in assembling
The bolt 71 of a suspension insulator 7 is installed, and bolt 71 is directed at sliding slot 82 and slides into, and chuck 72 is caught in card slot 83, this
When briquetting 84 is inserted into the gap location between chuck 72 and card slot 83 again, chuck 72 is withstood on into 82 bottom of sliding slot, chuck 72 is consolidated
It is scheduled in card slot 83, and so on, realize the installation of multiple suspension insulators 7.
Embodiment 3
As the third embodiment of the invention, for the ease of suspension insulator 7 is mounted at side of wire yoke plate 4, this
Invention is provided with socket-clevis eye 5, as a kind of preferred embodiment, as shown in Figure 4 and Figure 5, conducting wire side end suspension insulator 7
One end is provided with side of wire yoke plate 4, and suspension insulator 7 is connected to 4 one end of side of wire yoke plate by socket-clevis eye 5.
Socket-clevis eye 5 includes connecting bowl head 51, and the bottom of connecting bowl head 51 offers socket-clevis eye sliding slot 55, socket-clevis eye
The inside of sliding slot 55 offers socket-clevis eye card slot 56, and the inside of socket-clevis eye card slot 56 is additionally provided with socket-clevis eye briquetting 52,
5 bottom of socket-clevis eye is equipped with card slot hanging plate 54, has screw hole 53 on card slot hanging plate 54.
In the present embodiment, socket-clevis eye bolt 6 and screw hole 53 are threadedly coupled, convenient for that will be mounted on socket-clevis eye bolt 6 one
Side.
Further, the shape of socket-clevis eye sliding slot 55 and sliding slot 82, size are adapted, convenient for bolt 71 in socket-clevis eye
Sliding in sliding slot 55.
Specifically, the shape of socket-clevis eye card slot 56 and card slot 83, size are adapted, it is caught in convenient for chuck 72, bowl head is hung
Inside board slot 56.
It is worth noting that connecting bowl head 51 and card slot hanging plate 54 are an integral molding structure, so that connecting bowl head 51 and card
The integrated connection of slot hanging plate 54 is stablized, not easy to break.
It, will after multiple suspension insulators 7 assemble when suspension insulator 7 and side of wire yoke plate 4 installation of the present embodiment
Suspension insulator 7 positioned at 4 side of side of wire yoke plate is inserted into socket-clevis eye 5, specifically, the chuck 72 by suspension insulator 7 is suitable
Socket-clevis eye sliding slot 55 slide into, until being snapped onto socket-clevis eye card slot 56 completely, at this time socket-clevis eye briquetting 52 be inserted into bowl
Gap location between head hanging plate sliding slot 55 and socket-clevis eye card slot 56, is fixed on socket-clevis eye card slot 56 for chuck 72, at this time will
The card slot hanging plate 54 of socket-clevis eye 5 is mounted on side of wire yoke plate 4, realizes the installation of suspension insulator 7 and side of wire yoke plate 4.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention
Preference, be not intended to limit the invention, without departing from the spirit and scope of the present invention, the present invention also has various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (9)
1. a kind of operational method for charged for replacement 550kN large-tonnage strain insulator side of wire monolithic insulator, it is characterised in that: packet
Include following steps:
S1, equipotential live line work personnel enter equipotential；
S2, installation overturning plate clamp (1): overturning plate clamp (1) is mounted on strain insulator string side of wire bowl head and hung by equipotential electrician
On crab bolt (6)；
Block (2) after S3, installation monolithic insulator card: equipotential electrician will block (2) and be fixed on side of wire the after monolithic insulator card
On the steel cap (8) of three pieces suspension insulator (7)；
S4, installation digital display hydraulic screw rod (3): one end that a radical shows hydraulic screw rod (3) is passed through bolt and turned over by equipotential electrician
Board (1) is connected, then by the other end of digital display hydraulic screw rod (3) by blocking (2) after bolt and ipsilateral monolithic insulator card
It is connected, finally completes the installation that another radical shows hydraulic screw rod (3) according to same sequence；
S5, transfer part tension: tightening digital display hydraulic screw rod (3) makes tension part suffered by suspension insulator (7) be transferred to number
On aobvious hydraulic screw rod (3)；
S6, restringing side end suspension insulator: the bolt (71) of the needed to change suspension insulator both ends connection of extraction, one
The numerical value of digital display hydraulic screw rod (3) is observed on side, tightens digital display hydraulic screw rod (3) on one side, digital display hydraulic screw rod (3) tightening process
In, so that two radicals is shown hydraulic screw rod (3) numerical value and be consistent, until taking de- needed to change suspension insulator, takes needed for taking off more
The suspension insulator changed installs new suspension insulator, and the bolt (71) that new suspension insulator both ends connect is installed in place；
S7, digital display hydraulic screw rod (3) and removal tool are loosened, equipotential electrician exits electric field.
2. the operator according to claim 1 for charged for replacement 550kN large-tonnage strain insulator side of wire monolithic insulator
Method, it is characterised in that: the both ends of the overturning plate clamp (1) are connected separately with digital display hydraulic screw rod (3), digital display hydraulic screw rod (3)
The other end blocks (2) after connecting monolithic insulator card.
3. the operator according to claim 1 for charged for replacement 550kN large-tonnage strain insulator side of wire monolithic insulator
Method, it is characterised in that: connected respectively by steel cap (8) between multiple suspension insulators (7).
4. the operator according to claim 3 for charged for replacement 550kN large-tonnage strain insulator side of wire monolithic insulator
Method, it is characterised in that: be provided with connected unit (81) at the top of the steel cap (8), connected unit offers sliding slot at the top of (81)
(82), the inside of sliding slot (82) offers card slot (83), and the inside of card slot (83) is additionally provided with briquetting (84), suspension insulator
(7) bottom is equipped with bolt (71), and the bottom of bolt (71) is integrally formed with chuck (72).
5. the operator according to claim 4 for charged for replacement 550kN large-tonnage strain insulator side of wire monolithic insulator
Method, it is characterised in that: the chuck (72) and card slot (83) are engaged by clamping.
6. the operator according to claim 4 for charged for replacement 550kN large-tonnage strain insulator side of wire monolithic insulator
Method, it is characterised in that: the bolt (71) and sliding slot (82) are slidably connected.
7. the operator according to claim 1 for charged for replacement 550kN large-tonnage strain insulator side of wire monolithic insulator
Method, it is characterised in that: one end of suspension insulator described in conducting wire side end (7) is provided with side of wire yoke plate (4), suspension insulator
(7) side of wire yoke plate (4) one end is connected to by socket-clevis eye (5).
8. the operator according to claim 7 for charged for replacement 550kN large-tonnage strain insulator side of wire monolithic insulator
Method, it is characterised in that: the socket-clevis eye (5) includes connecting bowl head (51), and the bottom of connecting bowl head (51) offers bowl head extension
Plate sliding slot (55), the inside of socket-clevis eye sliding slot (55) offer socket-clevis eye card slot (56), socket-clevis eye card slot (56) it is interior
Portion is additionally provided with socket-clevis eye briquetting (52), and socket-clevis eye (5) bottom is equipped with card slot hanging plate (54), and card slot hanging plate has spiral shell on (54)
Hole (53).
9. the operator according to claim 8 for charged for replacement 550kN large-tonnage strain insulator side of wire monolithic insulator
Method, it is characterised in that: the socket-clevis eye bolt (6) and screw hole (53) are threadedly coupled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910612947.0A CN110190558A (en) | 2019-07-09 | 2019-07-09 | A kind of operational method for charged for replacement 550kN large-tonnage strain insulator side of wire monolithic insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910612947.0A CN110190558A (en) | 2019-07-09 | 2019-07-09 | A kind of operational method for charged for replacement 550kN large-tonnage strain insulator side of wire monolithic insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110190558A true CN110190558A (en) | 2019-08-30 |
Family
ID=67725452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910612947.0A Pending CN110190558A (en) | 2019-07-09 | 2019-07-09 | A kind of operational method for charged for replacement 550kN large-tonnage strain insulator side of wire monolithic insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110190558A (en) |
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| JP2013046535A (en) * | 2011-08-26 | 2013-03-04 | Tokyo Electric Power Co Inc:The | Replacing unit for insulator or the like of insulator device for power transmission |
| CN203553853U (en) * | 2013-07-04 | 2014-04-16 | 上海艾迪欧电力防振金具有限公司 | Anti-corona equal-voltage type tension-resistant string set |
| CN103742478A (en) * | 2014-01-02 | 2014-04-23 | 国家电网公司 | Multifunctional hydraulic screw rod |
| CN104242153A (en) * | 2014-09-29 | 2014-12-24 | 国家电网公司 | Construction technology for replacing monolithic 550kN glass insulators of strain towers of extra-high voltage direct-current transmission lines |
| CN204118594U (en) * | 2014-11-06 | 2015-01-21 | 国家电网公司 | A kind of live line working bundle conductor carries the Line tool |
| CN204390807U (en) * | 2015-02-13 | 2015-06-10 | 青州市盛元电力设备有限公司 | NEW TYPE OF COMPOSITE glass core insulator |
| CN106451214A (en) * | 2016-10-28 | 2017-02-22 | 国网浙江省电力公司金华供电公司 | Combined tool for electrically replacing extra-high voltage same-tower double-circuit tension insulator |
| CN108711778A (en) * | 2018-05-25 | 2018-10-26 | 国网河南省电力公司检修公司 | Six strain insulator of 550kN grades replaces tool and method |
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- 2019-07-09 CN CN201910612947.0A patent/CN110190558A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88201779U (en) * | 1988-03-14 | 1988-11-09 | 徐美权 | External recessing isolator |
| JPH0541124A (en) * | 1991-08-02 | 1993-02-19 | Ngk Insulators Ltd | Suspension type lightning arrester insulator and holding tool for insulator exchange |
| CN201126943Y (en) * | 2007-12-18 | 2008-10-01 | 西北电网有限公司 | Chucking tools clamping apparatus for altering conductor-end insulator for 750kV circuit with electrification |
| JP2013046535A (en) * | 2011-08-26 | 2013-03-04 | Tokyo Electric Power Co Inc:The | Replacing unit for insulator or the like of insulator device for power transmission |
| CN203553853U (en) * | 2013-07-04 | 2014-04-16 | 上海艾迪欧电力防振金具有限公司 | Anti-corona equal-voltage type tension-resistant string set |
| CN103742478A (en) * | 2014-01-02 | 2014-04-23 | 国家电网公司 | Multifunctional hydraulic screw rod |
| CN104242153A (en) * | 2014-09-29 | 2014-12-24 | 国家电网公司 | Construction technology for replacing monolithic 550kN glass insulators of strain towers of extra-high voltage direct-current transmission lines |
| CN204118594U (en) * | 2014-11-06 | 2015-01-21 | 国家电网公司 | A kind of live line working bundle conductor carries the Line tool |
| CN204390807U (en) * | 2015-02-13 | 2015-06-10 | 青州市盛元电力设备有限公司 | NEW TYPE OF COMPOSITE glass core insulator |
| CN106451214A (en) * | 2016-10-28 | 2017-02-22 | 国网浙江省电力公司金华供电公司 | Combined tool for electrically replacing extra-high voltage same-tower double-circuit tension insulator |
| CN108711778A (en) * | 2018-05-25 | 2018-10-26 | 国网河南省电力公司检修公司 | Six strain insulator of 550kN grades replaces tool and method |
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Application publication date: 20190830 |